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tooltip.js
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tooltip.js
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// Create a class for the element
class Tooltip extends HTMLElement {
constructor() {
// Always call super first in constructor
self = super();
}
connectedCallback() {
// Create a shadow root
const contents = Array.from(self.querySelectorAll("*"));
const shadow = this.attachShadow({ mode: "open" });
// Create spans
const wrapper = document.createElement("span");
wrapper.setAttribute("class", "wrapper");
const icon = document.createElement("span");
icon.setAttribute("class", "icon");
icon.setAttribute("tabindex", 0);
const info = document.createElement("span");
info.setAttribute("class", "info");
const img = document.createElement("img");
img.setAttribute("class", "icon-image");
img.src = "help-icon.svg";
img.alt = "info";
// Take attribute content and put it inside the info span
const text = this.getAttribute("data-text");
const isHTML = this.getAttribute("data-html");
if (isHTML) {
info.innerHTML = text;
} else {
info.textContent = text;
}
// Create some CSS to apply to the shadow dom
const style = document.createElement("style");
style.textContent = `
:host{
}
.wrapper {
position: relative;
}
.info {
font-size: 0.8rem;
width: 320px;
display: inline-block;
border: 1px solid #1d1d1f;
padding: 0.25rem 0.5rem;
background: white;
border-radius: 0.125rem;
opacity: 0;
transition: 0.6s all;
position: absolute;
top: 100%;
z-index: 3;
box-shadow: 0 2px 0.5rem rgba(0,0,0,0.16);
}
img {
width: 1.2rem;
}
.icon:hover{
cursor: pointer;
}
.icon:hover + .info, .icon:focus + .info {
opacity: 1;
}
`;
// Attach the created elements to the shadow dom
shadow.appendChild(style);
shadow.appendChild(wrapper);
wrapper.appendChild(icon);
wrapper.appendChild(info);
icon.appendChild(img);
}
}
customElements.define("tooltip-info", Tooltip);